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40IMX35D05D05-8 Datasheet(PDF) 10 Page - Power-One |
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40IMX35D05D05-8 Datasheet(HTML) 10 Page - Power-One |
10 / 15 page ® IMX35 Series Data Sheet 35 Watt Quad-Output DC-DC Converters BCD20009-G Rev AC, 06-May-2013 Page 10 of 15 Progr. Input Undervoltage Lockout PUL A special feature of the converters (with Rev. BA or later) is the adjustable undervoltage lockout protection, which protects the converter (and the system) from high current caused by operation at low input voltages. This ensures easier start-up in distributed power systems. The table below shows the band of switch on/off and the hysteresis. The undervoltage lockout levels may be programmed by using an external resistor RPUL between PUL and Vi– to increase the preset levels as specified in table 10. Table 10: Typical values for RPUL and the respective lockout voltage for input voltage. 20 IMX35 40 IMX35 R PUL [kW] Vi min [V] R PUL [kW] Vi min [V] ∞ ≤ 8 ∞ ≤ 15.5 39 10 43 22 19 12 16 26 13 14 10 28 9.1 16 0 32 70 IMX35 110 IMX35 R PUL [kW] Vi min [V] R PUL [kW] Vi min [V] ∞ 31 ∞ 42 270 40 270 50 110 50 120 60 80 55 51 75 Table 9: Trigger level and hysteresis (pin 1 left open) Model Trigger level Hysteresis Unit 20IMX35 7 to 8 <0.5 V 40IMX35 14 to 15.5 <1 70IMX35 31 to 34 <3 110IMX35 42 to 50 <8 |
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